Robust optimization-based combined cooling heating and power supplying type microgrid operating method

Abstract

The invention discloses a robust optimization-based combined cooling heating and power supplying type microgrid operating method. The operating method comprises the following steps of step 10), establishing a combined cooling heating and power supplying type microgrid economic operation target function; step 20), establishing a certainty constraint in combined cooling heating and power supplying type microgrid operating constraint; step 30), establishing uncertainty constraint in the combined cooling heating and power supplying type microgrid operating constraint; and step 40), solving an optimization model to obtain system operating control variable, and transmitting corresponding instructions to each equipment in the system, wherein the optimization model comprises the target function established in the step 10), the certainty constraint established in the step 20) and the uncertainty constraint established in the step 30). By adoption of the operating method, adverse impact caused by uncertainties of renewable energy and load can be eliminated.

Description

technical field [0001] The invention belongs to the field of combined cooling, heating and power generation systems, and in particular relates to a robust optimization-based operating method for a combined cooling, heating and power generation microgrid. Background technique [0002] With the depletion of non-renewable energy such as petroleum and coal, how to fully develop and utilize renewable energy while further improving energy utilization has become an urgent issue. The combined cooling, heating and power system uses natural gas energy for cogeneration of cooling, heating and electricity. On the one hand, it greatly improves energy utilization efficiency. On the other hand, it provides the possibility to make full use of distributed renewable energy such as wind power and photovoltaics. An important direction for the development of the energy system. [0003] At present, the combined cooling, heating and power microgrid is dispatched according to the predicted value o...

AI Technical Summary

Problems solved by technology

[0003] At present, the combined cooling, heating and power microgrid is dispatched according to the predicted value of renewable energy output and load forecast during operation. Since the output of renewable energy and user load have certain random characteristics, there is a high possibility of Deviating from the predicted value, the combined cooling, heating and power microgrid cannot actually operate at the best economic efficiency, and even poses a huge threat to the security of the microgrid system

Images